-struct group *__getgrent_a(FILE *f, struct group *gr, char **line, size_t *size, char ***mem, size_t *nmem)
+static unsigned atou(char **s)
+{
+ unsigned x;
+ for (x=0; **s-'0'<10U; ++*s) x=10*x+(**s-'0');
+ return x;
+}
+
+int __getgrent_a(FILE *f, struct group *gr, char **line, size_t *size, char ***mem, size_t *nmem, struct group **res)